title: Relationship between manometric and videofluoroscopic measures of swallow function in healthy adults and patients treated for head and neck cancer with various modalities.
abstract: Pharyngeal manometry complements the modified barium swallow with videofluoroscopy (VFS) in diagnosing pressure-related causes of dysphagia. When manometric analysis is not feasible, it would be ideal if pressure information about the swallow could be inferred accurately from the VFS evaluation. Swallowing function was examined using VFS and concurrent manometry in 18 subjects (11 head and neck patients treated with various modalities and 7 healthy adults). Nonparametric univariate and multivariate analyses revealed significant relationships between manometric and fluoroscopic variables. Increases in pressure wave amplitude were significantly correlated with increased duration of tongue base to pharyngeal wall contact, reduced bolus transit times, and oropharyngeal residue. Pharyngeal residue was the most important VFS variable in reflecting pharyngeal pressure measurements. Certain VFS measures were significantly correlated with measures of pressure assessed with manometry. Further research is needed before observations and measures from VFS alone may be deemed sufficient for determining pressure-generation difficulties during the swallow in patients who are unable or unwilling to submit to manometric testing.
authors.affiliation: Communication Sciences and Disorders, Northwestern University, 2240 Campus Drive, Evanston, IL 60208-3540, USA. pauloski@northwestern.edu
authors.forename: Barbara Roa
authors.initials: BR
authors.lastname: Pauloski
authors.forename: Alfred W
authors.initials: AW
authors.lastname: Rademaker
authors.forename: Cathy
authors.initials: C
authors.lastname: Lazarus
authors.forename: Guy
authors.initials: G
authors.lastname: Boeckxstaens
authors.forename: Peter J
authors.initials: PJ
authors.lastname: Kahrilas
authors.forename: Jerilyn A
authors.initials: JA
authors.lastname: Logemann
mesh_terms: D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D003679:Deglutition; D003680:Deglutition Disorders / Q000175:diagnosis* / Q000209:etiology; D005260:Female; D005471:Fluoroscopy / Q000295:instrumentation; D006258:Head and Neck Neoplasms / Q000150:complications*; D006801:Humans; D008297:Male; D008365:Manometry / Q000295:instrumentation*; D008875:Middle Aged; D015999:Multivariate Analysis; D013223:Statistics as Topic; D014741:Video Recording / Q000295:instrumentation